#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<time.h>
int main()
{
	int i, j, flag, sum = 0;
	for (i = 100; i <= 200; i++)
	{
		/***********found***********/
		flag = 0;//
		for(j=2;j<=i-1;j++)
			/**********found********/
			if (i%j==0)
			{
				flag = 1;
				break;
			}
		/********found*********/
		if (!flag)
			sum += i;
	}
	printf("The sum is %d\n", sum);
	return 0;
}